ScorecardResearch is service of Full Circle Studies, Inc., is part of the comScore, Inc. market research community, a leading global market research effort that studies and reports on Internet trends and behavior. Here are all the website that put a pixel of Scorecard Research
LiveInternet - крупный сервис дневников и сообществ, авторитетный сервис статистики для сайтов.
Anti-bot CAPTCHA widget that helps digitize books by providing snippets of books for people to enter the text for. Owned by Google.
Websites using some form of Captcha technology on them.
CloudFlare is a global CDN and DNS provider that can speed up and protect any site online.
Provides a button on the site to call the user via Skype.
UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. It is the preferred encoding for web pages.
Google's hosted library for web fonts. Allows websites to choose and use fonts from a free, wide variety of fonts.